Door-equalizer.



UNITED STATES Patented June 2, 1903.

PATENT GFFICE.

GEORGE M. HANEY, OF GRAND RAPIDS, MICHIGAN.

DOOR-EQUALIZER.

SPECIFICATION forming part of Letters Eatent No. 730,1 18, dated June 2, 1503.

Application filed neat 2t, 1902. Serial No. 99.936. (No model.)

T0 ctZZ whom it may concern:

Be it known that I, GEORGE M. HANEY,--a citizen of the United States, residing at Grand Rapids, in the county of Kent and State of Michigan, have invented new and useful Improvements in Door-Equalizers, of which the following is a specification.

This invention relates to a new and. useful door-equalizer for bookcases and analogous purposes, and peculiarly adapted to cases made in sections, where each section is provided with a separate door; and the invention consists in connecting the door to an equalizer, the equalizer having two pairs of fulcrums, one near the front of the case and the other near the rear of the case, said equalizing-frame being adapted to disconnect from one pair of fulcrums when connected with the other pair of fulcrums, substantially as shown and described.

The objects of my invention are, first, to furnish an equalizer which will compel the door to slide into and out of the case evenly and without binding; second, to support the door from the equalizer so that it will move with "ery little friction; third, to furnish an equalizer that will have a tendency to move the door into the case when said door shall have been raised to a horizontal position and will also have a tendency to push the door out of the case after it has been shoved entirely into the said case; fourth, to simplify the construction of the equalizer by dispensing with springs and other means for operating the same. These objects I accomplish by means of the mechanism illustrated in the. accompanying drawings, in which Figure 1 shows a perspective view of a base and two sections arranged on thebase, one above the other. Fig. 2 shows, on an enlarged plan, a transverse sectional View of a single section, taken just inside of one of the end plates of the equalizing device, showing the door closed and the position of the equalizing-frame when said door is closed. Fig. 3 shows alike sectional view, but with the door raised to a horizontal position and slid into the section. Fig. 4: shows also a like sectional View, showing the position of the frame when the door is slid half-way into the case. Fig. 5 shows the equalizing device complete de tached from the frame.

Similarletters refer to similar parts throughout iheseveral views.

A shows the end of a section, constructed of wood or any suitable material.

B shows the end plates of the equalizingeach of the plates B. These slots engagewith the pins or pegs F when the door is open and up to a time that the frame is lifted from these pins, as hereinafter described.

H represents the bifurcations or slots at the front of the plates B. These bifurcations or slots H engage with the fulcrum-pins G when the door is closed, as shown in Fig. 2.

i D represents the door, which is supported upon the rod 0 by means of loops or other suitable devices, as shown in Fig. 2.

I prefer to have a partition near each end of the section, so as to form a receptacle for the plates B between such partition and the end A. I have shown the position of the upper part'of this partition by the dotted lines K in which the door is supported, has passed a point directly over the fulcrum-pin G and as long as the plate B is supported on said fulcrum-pin G the tendency is to assist in moving the door into the case, as the plates'B, with the rod 0 and attached door, practically fall back into the case until each plate B is no longer supported on the fulcrum-pin G. By shoving the door into the case the plates B turn upon-the pivots or fnlcrums G until the slots E embrace the fulcrum-pins F. From this time as the door continues its inward movement the pins F form the fulcrum, and the slotted portions H of the plates are lifted from the fulcrum-pins G, and the frame-plates B assume the position shown in Fig. 3. In

drawing the door out from the section there will be a tendency at first on the part of the plates 13 to push the door outwardly after the same has been started on' its way, and this 5 pressure will increase until the slots H engage with the fulcrum-pins G, after which the slotted portions E of the end plates will be lifted from the fulcrum-pins F, and the frame will turn upon the fulcrum-pins G until the door is pulled entirely out and dropped down into a perpendicular position.

I do not wish to limit myself to the specific construction described, as it will be evident that changes might be made without departing from the spirit of my invention. I believe that I am the first to furnish an equalizer which shifts from one set of fulcrums to another in opening and closing a door.

Having thus described my invention, what I claim to have invented, and desire to secure by Letters Patent, is-

1. In a cabinet, the combination with avertically-rockin g andhorizontally-slidable door;

of a rod pivotally connected to said door, and an angular plate rigidly connected to each end of said rod, each of said plates having a plurality of curved slots forming fulcrumpoints for supporting said door in different positions while it is being opened and closed.

2. The combination of a cabinet, a door for said cabinet, a rod connected to said door, plates rigidly secured to said rod, at right angles thereto, extending into the ends of said cabinet, each of said plates having a plurality of elongated curved slots forming fulcrumpoints, and a plurality of fulcrum-pins in said cabinet arranged to engage the slots in said plates.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

GEORGE M. HANEY.

Witnesses:

ARTHUR O. DENISON, EDWARD TAGGART. 

